div{
	font-size:30px;
	color:blue ;
	border: 1px solid yellow;
}

span{
	color: yellow;
	font-size: 20px;
	border: 5px solid blue;
}
#aaa{
	color: blue;
	font-size: 30px;
	border: 1px solid yellow;
}

#bbb{
	color: red;
	font-size: 20px;
	border: 5px solid blue;
}